"Not relevant to explain this stat" in an article entirely about using those stats to justify their AI policy is brazen, I have to give credit.

One other point of note is that the chart only goes back to January 2025, and only dilineates "majority AI" from "not majority". If the usage rate in January 2025 was at 45%, "issue rate remained roughly stable (with a giant asterisk) when moving from 45% to 51%" is not exactly a compelling story. There's no narrative I trust less than one created by cherrypicking data to lend itself an aura of faux objectivity.